Allocation of Resources Without Limits or Throttling in Next.js - #VU130278
Published: May 6, 2026
Vulnerability identifier: #VU130278
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Next.js
Next.js
Software vendor:
vercel
vercel
Description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the Image Optimization API when handling requests to the /_next/image endpoint for large local assets matching configured local patterns. A remote attacker can request large local assets to cause a denial of service.
Only self-hosted deployments using the default image loader are vulnerable. By default, all local patterns are allowed.
Remediation
Install security update from vendor's website.